Marc, I will find that out on the Voyager, as I am in one of the category H cabins, and there has been the discussion of the vibration issue. I think I'm in 669, your mother in law's cabin. Last time on Voyager, I was a category H guarantee, and ended up on deck 9. I'm with you in booking early for the reasons stated. Besides, I prefer being lower on the ship. Easier to get to the public areas.
